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| A 1938 Dayton Twin Flex boy's frame bicycle with Firestone badge; image credit on full record. |
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| The Dayton Twin Flex boy's frame bicycle; image credit on full record. |
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| Detail of the Firestone head badge; image credit on full record. |
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| The head lamp on the Dayton Twin Flex boy's frame bicycle; image credit on full record. |
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| Detail of the Firestone speedometer; image credit on full record. |
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| Detail of the Twin Flex Cushioned frame mark; image credit on full record. |
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| Rear frame and suspension on the Dayton Twin Flex boy's frame bicycle; image credit on full record. |
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| The rear fender and reflector on the Dayton Twin Flex boy's frame bicycle; image credit on full record. |
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| The front fork and lamp on the Dayton Twin Flex boy's frame bicycle; image credit on full record. |
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| Rear hub and spoke detail of the Dayton Twin Flex boy's frame bicycle; image credit on full record. |
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| Jeweled grips on the Dayton Twin Flex boy's frame bicycle; image credit on full record. |
